The 15 best ski boots of 2026, tested by a ski gear expert

BOA: BOA is a dial-and-cable closure system that replaces traditional ski boot buckles. Introduced from snowboarding, it allows precise, even tension by wrapping the boot shell or cuff around the foot and leg for a customised fit without pressure points. The Alpine H+i1 version uses a Z-shaped cable path to evenly tighten the shell, while newer designs also secure the cuff. BOA systems provide micro-adjustability, smoother closure and a more uniform hold, often making boots feel slightly softer in flex compared with traditional four-buckle designs.

Cabrio: A shell design in three pieces with an external tongue, favoured by freestylers for its smooth flex.

Canting: Canting adjusts the base angle of a ski boot to improve skier alignment. A trained boot fitter assesses stance, adds angled pads and reworks the sole to match the bindings – an advanced adjustment best left to experienced professionals.

Cuff: The upper part of the shell that wraps around the lower leg.

Cuff alignment: Adjustable cuff alignment allows boot fitters to alter boots to more appropriately match the angle of your legs. It can be done via a device on one (single) or both sides (double) of the cuffs.

Flex: Flex is a rating of how much support a boot offers. It is not standardised, but does help to give an indication of how stiff a boot is, when flexing forward. A lower figure is easier to flex forward, while a higher number will give more support and power. Adult boots range from around 60 up to 130, or even higher for some boots.

Flex adjuster: Some boots have a system for altering the flex to suit conditions. For example, stiffer on-piste, softer off-piste.

Footbed: A removable foam insert that sits inside the liner, under your foot. Most people benefit from removing this and using a footbed that has more support and structure. These can be pre-shaped, such as most Superfeet footbeds, or they can be custom moulded.

Last width: Last width is measured across the forefoot and indicates fit. Up to 105mm is generous, less than 99mm is narrow. This ‘last’ figure a brand quotes is typically for a size 26/26.5MP boot.

Liner: Also called inner boots, liners are the padded sections that surround the foot, ankle and leg, providing comfort, warmth and a personalised fit. Options include aftermarket models like Foam Injected, Intuition and ZipFit liners, which use materials such as foam, closed-cell foam or cork mixtures to deliver varying levels of precision, customisation and durability.

Mondopoint (MP): Mondopoint (MP) is the ski boot sizing system based on foot length in centimetres rather than shoe size, so accurate measurement is essential. Most brands pair half sizes (for example, 26.0 and 26.5 MP) as the same shell length, though exceptions like Scarpa use a reversed system.

ROM: This stands for Range Of Motion and is how much movement you get in the cuff of a boot when in tour mode.

Shell: The plastic outer part of boots, which is often heat-mouldable to improve fit. The term shell more specifically relates to the plastic outer around the foot and ankle, as opposed to the cuff which fits around the leg and ankle.

Sole: This is the bottom section of the boot; the part that rests on the floor and interfaces with the binding.

Thermo-moulding: Heat customisation of liners or shells. The whole thing may not be mouldable. All ski boot outers can be heat moulded to some degree. When we’ve rated them as heat mouldable, in the bullet points for the boots, it’s because they’ve been designed to be put in an oven and the whole shell heated. Nordica does it a different way and uses their own Infrared heating system.

Tour/walk mode: A connector, usually on the rear of the boot, that can be released to allow greater fore and aft movement in the cuff when hiking or skinning. This can then be switched to securely connect to the cuff and lower shell for skiing.

Tongue: The part of the boot that sits in front of the shin. Both the liner and shell can have a tongue.